The natural frequencies for a stretched string of length L, and wave speed v, are Nv/(2L) where N equals
A) 0, 1, 2, 3, ...
B) 2, 4, 6, 8, ...
C) 1, 2, 3, 4, ...
D) 0, 1, 3, 5, ...
E) 1, 3, 4, 5, ...
C
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Velma is in a rocket ship moving north past Mort at half of lightspeed relative to Mort. She fires a laser beam forward from the front of her ship. Mort sees the laser beam move at
A) slightly faster than c. B) slightly slower than speed c [lightspeed]. C) 1.5c. D) c. E) 0.5c.
What is the electron configuration for ground state Li, which has 3 electrons?
A) 1s3 B) 1s12s2 C) 1s22s1 D) 1s21p1 E) 1s11p2
The Babcock model employs differential rotation of the solar surface and a magnetic dynamo to describe the formation of sunspots
Indicate whether the statement is true or false
About how many times larger in diameter is a 
nucleus than an 
nucleus?
A. 2.37 B. 1.54 C. 1.33 D. They are about the same size. E. Some other factor (specify)